GB657875A - Improvements relating to rotors or the like made from at least two sections connected together by annular weld seams - Google Patents
Improvements relating to rotors or the like made from at least two sections connected together by annular weld seamsInfo
- Publication number
- GB657875A GB657875A GB7720/49A GB772049A GB657875A GB 657875 A GB657875 A GB 657875A GB 7720/49 A GB7720/49 A GB 7720/49A GB 772049 A GB772049 A GB 772049A GB 657875 A GB657875 A GB 657875A
- Authority
- GB
- United Kingdom
- Prior art keywords
- welding
- welds
- tack welds
- tack
- welded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 abstract 7
- 230000008602 contraction Effects 0.000 abstract 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
657,875. Making turbines. SULZER FRERES SOC. ANON. March 22, 1949, No. 7720. Convention date, April 21, 1948. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In a method of welding sections of turbine rotors and the like along annular seams the parts are first tack-welded and then welded between the tacks in a furnace which is at a temperature below the welding temperature, the tack welds and ends of the welding runs being then removed and the gaps thus produced being finally welded. Two adjacent sections 5, 6, Fig. 2, of a turbine rotor are centred at cylindrical faces 7 by a ring 8 and are axially located by removable pins 18 in the ring, so as to provide spaces 9<SP>1</SP> between the parts 5, 6 which close when the welds 10 finally contract. The pins are removed after the tack welds are made and the rotor is inserted in the furnace for completion of the welding. Closable apertures are provided in the furnace wall to permit access to the work which is slowly rotated during welding. Abutments 17 engage when the rotor is assembled and are deformed as shown in Fig. 3 during final contraction. In a modification, faces 14, Fig. 4, and the deformable flanges 17 may abut a locating-ring 13 which centres the sections on its outer face 12. An even number of uniformly-spaced tack welds is preferable, diametrically opposite tack welds being made simultaneously and in welding between the tack welds the next succeeding run is made between the diametrically opposite pair. Further welding runs may be made over the first and the whole may be finally heat-treated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH657875X | 1948-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB657875A true GB657875A (en) | 1951-09-26 |
Family
ID=4526637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7720/49A Expired GB657875A (en) | 1948-04-21 | 1949-03-22 | Improvements relating to rotors or the like made from at least two sections connected together by annular weld seams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB657875A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114473134A (en) * | 2022-02-24 | 2022-05-13 | 中国长江电力股份有限公司 | Rotor support weak constraint symmetric welding process |
WO2024139682A1 (en) * | 2022-12-27 | 2024-07-04 | 山东建筑大学 | Pipe roofing structure and construction method therefor |
-
1949
- 1949-03-22 GB GB7720/49A patent/GB657875A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114473134A (en) * | 2022-02-24 | 2022-05-13 | 中国长江电力股份有限公司 | Rotor support weak constraint symmetric welding process |
CN114473134B (en) * | 2022-02-24 | 2024-04-16 | 中国长江电力股份有限公司 | Rotor support weak constraint symmetrical welding process |
WO2024139682A1 (en) * | 2022-12-27 | 2024-07-04 | 山东建筑大学 | Pipe roofing structure and construction method therefor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3867060A (en) | Shroud assembly | |
US2637521A (en) | Gas turbine rotor and method of welding rotor disks together | |
US5601403A (en) | Apparatus and methods for modifying a turbine diaphragm for use with a reduced rotor LAN diameter | |
US3876335A (en) | Welded rotor | |
US3067490A (en) | Process for the production of turbine rotors welded from single parts | |
GB657875A (en) | Improvements relating to rotors or the like made from at least two sections connected together by annular weld seams | |
GB1236366A (en) | Elastic fluid machine | |
US3927960A (en) | Rotary kiln | |
FR2148901A5 (en) | Welded rotors - with electron beam welded rotor rings | |
GB1536800A (en) | Duct-mounted turbine | |
GB646483A (en) | Improvements in and relating to turbine and like rotors | |
GB510672A (en) | Improvements in and relating to casings for elastic fluid turbines | |
GB972338A (en) | Improvements in and relating to welded rotors of rotary machines | |
US995517A (en) | Steam-turbine. | |
GB566417A (en) | Improvements in or relating to rotors for turbo-machinery | |
GB661178A (en) | Nozzle bodies for turbines | |
CN206281001U (en) | Hole site determines that gauge and hole site determine external member | |
GB706464A (en) | Welded joints for turbo-rotors | |
FR2278910A1 (en) | Stator assembly for steam turbine - has blades, shrouds and rings with common electron beam welds | |
US1316463A (en) | Method of making packing-rings | |
JPS5462411A (en) | High-temperature combustor | |
GB646491A (en) | Improvements in blade rings for radial flow elastic fluid turbines | |
Seeland | Large Spiral Casings of T-1 Steel | |
GB603044A (en) | Improvements in moving blades for radial flow elastic fluid turbines or compressors | |
JPS57140412A (en) | Split type embeded steel plate cell work |